// form validation function //
function microValidateUser(form, lang) {
  var email = form.email.value;
  var reason = form.reason.value;
  var question = form.question.value;

  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);

  if ('lt' == lang){
	  var emailMsg = '<strong>Klaida</strong><br />Nurodykite el.pašto adresą.';
	  var emailInvalidMsg = '<strong>Klaida</strong><br />Nurodytas el.pašto adresas neatitinka formato.';
	  var reasonMsg = '<strong>Klaida</strong><br />Pasirinkite priežastį.';
	  var questionMsg = '<strong>Klaida</strong><br />Įrašykite savo klausimą.';
	  var questionInvalidMsg = 'Klausimo tekstas turi pašalinių simbolių.';
  }
   else if (('en  ' == lang) || ('us' == lang)){
	   var emailMsg = '<strong>Error</strong><br />You must enter your email.';
	   var emailInvalidMsg = '<strong>Error</strong><br />You have entered an invalid email.';
	   var reasonMsg = '<strong>Error</strong><br />You must select your reason.';
	   var questionMsg = 'You must enter a question.';
	   var questionInvalidMsg = 'You have entered an invalid question.';
   }

  // email
  if(email == "") {
    inlineMsg('email', emailMsg, 2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email', emailInvalidMsg, 2);
    return false;
  }
  // reason
  if(reason == "") {
    inlineMsg('reason', reasonMsg, 2);
    return false;
  }
  // question
  if(question == "") {
    inlineMsg('question', questionMsg, 2);
    return false;
  }
  if(question.match(messageRegex)) {
    inlineMsg('question', questionInvalidMsg, 2);
    return false;
  }
}

function microValidateAnonymous(form, lang){
  var name = form.name.value;
  var surname = form.surname.value;
  var email = form.email.value;
  var country = form.country.value;
  var reason = form.reason.value;
  var question = form.question.value;
  
  var nameRegex = /^[a-zA-ZąčęėįšųūžĄČĘĖĮŠŲŪŽ]+(([\'\,\.\- ][a-zA-Z])?[a-zA-Z]*)*$/;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
  
  if ('lt' == lang){
	  var nameMsg = '<strong>Klaida</strong><br />Nurodykite vardą.';
	  var nameInvalidMsg = 'Nurodytas netinkamas vardas.';
	  var surnameMsg = '<strong>Klaida</strong><br />Nurodykite pavardę.';
	  var surnameInvalidMsg = 'Nurodyta netinkama pavardė.';
	  var emailMsg = '<strong>Klaida</strong><br />Nurodykite el.pašto adresą.';
	  var emailInvalidMsg = '<strong>Klaida</strong><br />Nurodytas el.pašto adresas neatitinka formato.';
	  var countryMsg = '<strong>Klaida</strong><br />Pasirinkite šalį.';
	  var reasonMsg = '<strong>Klaida</strong><br />Pasirinkite priežastį.';
	  var questionMsg = '<strong>Klaida</strong><br />Įrašykite savo klausimą.';
	  var questionInvalidMsg = 'Klausimo tekstas turi pašalinių simbolių.';
  }
   else if (('en  ' == lang) || ('us' == lang)){
	   var nameMsg = '<strong>Error</strong><br />You must enter your name.';
	   var nameInvalidMsg = 'You have entered an invalid name.';
	   var surnameMsg = '<strong>Error</strong><br />You must enter your last name.';
	   var surnameInvalidMsg = 'You have entered an invalid last name.';
	   var emailMsg = '<strong>Error</strong><br />You must enter your email.';
	   var emailInvalidMsg = '<strong>Error</strong><br />You have entered an invalid email.';
	   var countryMsg = '<strong>Error</strong><br />You must select your country.';
	   var reasonMsg = '<strong>Error</strong><br />You must select your reason.';
	   var questionMsg = 'You must enter a question.';
	   var questionInvalidMsg = 'You have entered an invalid question.';
   }
  
  // name
  if(name == "") {
    inlineMsg('name', nameMsg, 2);
    return false;
  }
  if(!name.match(nameRegex)) {
    inlineMsg('name', nameInvalidMsg, 2);
    return false;
  }
  // surname
  if(surname == "") {
    inlineMsg('surname', surnameMsg, 2);
    return false;
  }
  if(!surname.match(nameRegex)) {
    inlineMsg('surname', surnameInvalidMsg, 2);
    return false;
  }
  // email
  if(email == "") {
    inlineMsg('email', emailMsg, 2);
    return false;
  }
  if(!email.match(emailRegex)) {
    inlineMsg('email', emailInvalidMsg, 2);
    return false;
  }
  // country
  if(country == "") {
    inlineMsg('country', countryMsg, 2);
    return false;
  }
  // reason
  if(reason == "") {
    inlineMsg('reason', reasonMsg, 2);
    return false;
  }
  // question
  if(question == "") {
    inlineMsg('question', questionMsg, 2);
    return false;
  }
  if(question.match(messageRegex)) {
    inlineMsg('question', questionInvalidMsg, 2);
    return false;
  }
  return true;
}

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "images/msg_arrow.gif"; 
}